JPH05319306A - External plate member joint structure for vehicle - Google Patents

Abstract

PURPOSE:To provide the external plane member joint structure for a vehicle which improves the endurance reliability of the joint part between an external plate member made of light alloy plate and a frame member made of iron material without imparting the appearance of a vehicle. CONSTITUTION:A roof panel 10 is constituted of a drawing formed article made of aluminum plate material as a light alloy plate. A windshield header panel 14 is constituted of a drawing formed article made of iron plate material, and fiber reinforced metallic material 20 is seamed and fixed to the upper surfaces of both the vehicle body longitudinal direction edge parts 14A, 14B of the windshield header panel 14 by carbon fiber 22. The fiber reinforced metallic material 20A is made of aluminum alloy, and a surface layer part 20A made of aluminum is formed at the vehicle body external side part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle outer plate member joining structure for fixing an outer plate member of a vehicle to a frame member.

[0002]

2. Description of the Related Art Conventionally, iron materials have been mainly used for outer panel members of vehicles such as roof panels, but in recent years, for the purpose of weight reduction and rust prevention, press drawn products of light alloy sheet materials such as aluminum. It is considered to be. On the other hand, there is also known a technique of forming a frame member of a vehicle by extrusion molding of aluminum (Japanese Utility Model Publication No. 1-101985).

[0003]

However, the skeletal member of the vehicle has a function as a strength member and a high rigidity member,
At present, it is composed of iron-based materials. Therefore, when a vehicle outer plate member such as a roof panel is a press-drawn product of a light alloy plate material such as aluminum, it is necessary to join the outer plate portion of the light alloy plate material to the skeleton member of the iron-based material. For this reason, the light alloy sheet material and the iron-based material are joined, and conventional welding cannot be used, and there is no good joining method. For example, it is conceivable that they are bonded by an epoxy resin, but in this case, there is a problem that the rigidity of the joint is not sufficient and sufficient durability reliability cannot be obtained. In addition, when joined by rivets, there is a problem that the quality of appearance is deteriorated.

In consideration of the above facts, the present invention improves the durability and reliability of the joint between the outer plate member made of a light alloy plate and the skeleton member made of an iron-based material without deteriorating the appearance quality of the vehicle. It is an object to obtain a vehicle outer plate member joint structure capable of being manufactured.

[0005]

The present invention according to claim 1 comprises an outer plate member made of a light alloy plate, and an iron-based material to which a fiber reinforced metal material having a light alloy surface layer is fixedly attached to an outer portion of a vehicle body. And a skeletal member of

[0006]

According to the present invention as set forth in claim 1, the skeleton member is made of an iron-based material, and the skeleton member has a fiber reinforced metal having a light alloy surface layer at an outer portion of the vehicle body, that is, a weld portion with the outer plate member. The material is stuck. Therefore, at the welded portion between the outer plate member and the skeleton member, the light alloy plate and the light alloy surface layer are welded, and the outer plate member and the skeleton member can be joined by welding. Therefore, the rigidity of the joint between the outer plate member made of a light alloy plate and the skeleton member made of an iron-based material can be improved without deteriorating the appearance quality of the vehicle, and the durability reliability is improved. be able to.

As a method for fixing the fiber reinforced metal material having the light alloy surface layer to the skeleton member, suturing with a fibrous body such as carbon fiber, a method of sandwiching the outer plate member and the skeleton member with clips, and the like are considered. By performing these operations for each frame member before assembling the vehicle, automation becomes easy.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a vehicle outer plate member joining structure of the present invention will be described with reference to FIGS. In the figure, an arrow FR indicates a vehicle front direction, an arrow IN indicates a vehicle width inward direction, and an arrow UP.
Indicates the upward direction of the vehicle.

As shown in FIG. 4A, the automobile body 1
A roof panel 10 as an outer plate member of a vehicle is arranged in the roof portion of No. 1, and a windshield header panel 14 as a skeleton member extending in the vehicle width direction is arranged at the lower front end of the roof panel 10. It is set up.

As shown in FIG. 1, a roof panel 10
Is composed of a press-drawing product of an aluminum plate material as a light alloy plate, and has reduced weight and improved rust resistance.
Further, the flange portion 1 is provided on the outer peripheral edge portion of the roof panel 10.
0A is formed, and an epoxy resin glass fiber laminated portion 12 as a backing material is bonded to the portion excluding the flange portion 10A from the back surface side with a thickness of several mm.

On the other hand, the windshield header panel 14
Is made of press-formed iron plate material and has high rigidity. The widthwise end edges of the windshield header panel 14, that is, the vehicle front-rear end edges 14A, 14B.
The fiber-reinforced metal material 20 is sewn and fixed to the upper surface of the by means of carbon fibers 22 as a fibrous body.

As shown in FIG. 2, the fiber-reinforced metal material 20 is made of an aluminum alloy, and the outer surface of the vehicle body is a light alloy surface layer made of aluminum by pouring, dipping, fusion welding or the like. A surface layer portion 20A as a portion is formed.

When the carbon fiber 22 is wound around the windshield header panel 14, when the wall thickness T of both end portions 14A, 14B of the windshield header panel 14 in the vehicle front-rear direction is about 2.3 mm, as shown in FIG. As shown in the drawing, the through holes 26 communicated with the outside by the slits 24 formed at predetermined intervals. Further, the vehicle body front-rear end edges 14 of the windshield header panel 14
When the wall thickness T of A and 14B is about 1.6 mm, the carbon fiber 22 is wound around the windshield header panel 14
In consideration of the strength of both end portions 14A, 14B of the vehicle body front-rear direction, the through holes 28 are formed at predetermined intervals.

As shown in FIG. 3, the carbon fibers 22 are wound around the through holes 26 communicated with the outside by the slits 24. The carbon fibers 22 wound around the reel 30 are heated to a high temperature by the burner 32. The robot arm 34 is used in this state. The width W1 of the tip of the robot arm 34 is narrower than the width W2 of the slit 24, and a hole 34A through which the carbon fiber 22 is passed is formed at the tip.
In addition, the robot arm 34 is a drive device (not shown), and has a tip portion in a vertical direction (arrow A direction and arrow B direction in FIG. 3), a left and right direction (arrow C direction and arrow D direction in FIG. 3), and front and rear It is movable in the directions (arrow E direction and arrow F direction in FIG. 3).

Therefore, the windshield header panel 14 before being assembled to the vehicle body is fixed near the robot arm 34, the robot arm 34 is operated, and the tip end portion of the robot arm 34 is moved along the solid line and the broken line in FIG. By moving along, the carbon fibers 22 can be automatically wound around the through holes 26 of the windshield header panel 14.

Further, the winding of the carbon fiber 22 around the through hole 28 is carried out by a robot (not shown) having a structure capable of patterning and feeding with upper and lower sewing needles similar to a ready-made automatic sewing machine.

As shown in FIG. 1, a front pillar reinforcement 42 as a skeleton member is provided at the vehicle width direction outer end of the windshield header panel 14 via a three-pronged portion.
And the roof side rail 44. Also,
A rib body 38 made of aluminum and having a substantially U-shaped cross section is welded to the rear side surface of the windshield header panel 14 on the rear side edge portion 14B in the front-rear direction of the vehicle body with the opening portion facing downward. An epoxy resin glass fiber laminated portion 40 is provided on the upper surface portion of the rib body 38, and the epoxy resin glass fiber laminated portion 40 is reinforced by adhesive integration with the epoxy resin glass fiber laminated portion 12 of the roof panel 10. Has been done.

Next, the operation of this embodiment will be described. In this embodiment, the base of the windshield header panel 14 is made of an iron-based material.
A fiber-reinforced metal material 20 having a surface layer portion 20A made of aluminum is sewn and fixed to an outer portion of the vehicle body, that is, a welded portion with the roof panel 10.

Therefore, the roof panel 10 made of aluminum
In the welded portion between the windshield header panel 14 and the windshield header panel 14, aluminum and the surface layer portion 20A made of aluminum are welded, and the roof panel 10 and the windshield header panel 14 are joined by laser beam welding and ordinary continuous welding. It will be possible. Therefore, the car body 11
It is possible to improve the rigidity of the joint between the roof panel 10 made of aluminum and the windshield header panel 14 made of an iron-based material without deteriorating the appearance quality of the roof part of the above, and in terms of natural frequency characteristics. It can be integrated, the durability and reliability can be improved, and vibration and noise can be reduced.

In this embodiment, the joining of the roof panel 10 and the windshield header panel 14 has been described, but as shown in FIG. 1, the joining of the roof side rail 44 as a frame member and the roof panel 10 is performed. Part and front pillar reinforcement 4 as skeletal member
The vehicle outer plate member joint structure of the present invention may be applied to the joint portion between 2 and a front pillar outer panel as an outer plate member (not shown). Further, as shown in FIG. 4 (B), the vehicle outer plate member joining structure of the present invention is applied to other parts such as a joining portion between the quarter pillar 50 as a skeletal member and the quarter panel 52 as an outer plate member. Alternatively, by forming each outer plate member with the same light alloy plate, unevenness in coating and the like is eliminated and appearance quality is improved.

Further, in this embodiment, the carbon fiber 22 is used as the fibrous body, but the fibrous body is not limited to the carbon fiber 22, and silicon carbide fiber, whiskers, stainless fiber, alumina fiber, glass fiber, etc. may be used. You may use it. Further, in this embodiment, the metal material of the fiber-reinforced metal material 20 is an aluminum alloy, but instead of this, the metal material of the fiber-reinforced metal material 20 may be another light metal alloy such as a magnesium alloy.

Further, in the present embodiment, the fiber-reinforced metal material is sewn and fixed to the skeleton member by the fibrous body, but instead of this, the outer plate member and the skeleton member are sandwiched by the clip previously formed of the fiber-reinforced metal material. The fiber-reinforced metal material may be fixed to the skeleton member by another method such as a method of fixing and then heat-integrating.

[0023]

The vehicle outer plate member joining structure of the present invention comprises an outer plate member made of a light alloy plate and an iron-based material to which a fiber reinforced metal material having a light alloy surface layer is adhered to the outer side of the vehicle body. Since the structure includes the frame member, the durability reliability of the joint portion between the outer plate member made of the light alloy plate and the frame member made of the iron-based material is improved without deteriorating the appearance quality of the vehicle. It has an excellent effect of being able to.

[Brief description of drawings]

FIG. 1 is a perspective view of an outer plate member joining structure for a vehicle according to an embodiment of the present invention, as viewed from the diagonally front outside of the vehicle body.

2 is a sectional view taken along line 2-2 of FIG.

FIG. 3 is an explanatory view showing a method for joining fiber-reinforced metal materials in a vehicle outer plate member joining structure according to an embodiment of the present invention.

FIG. 4A is a perspective view of a vehicle body to which an outer plate member joining structure for a vehicle according to an embodiment of the present invention is applied, viewed obliquely from the front, and FIG. 4A is an embodiment of the present invention. FIG. 8 is a perspective view of a vehicle body to which the vehicle outer plate member joining structure according to FIG.

[Explanation of symbols]

 10 Roof Panel (Outer Plate Member) 14 Windshield Header Panel (Skeletal Member) 20 Fiber Reinforced Metal Material 20A Surface Layer (Light Alloy Surface Layer)

Claims (1)

[Claims] 1. A vehicle comprising: an outer plate member made of a light alloy plate; and a skeleton member made of an iron-based material to which a fiber reinforced metal material having a light alloy surface layer is adhered to an outer portion of a vehicle body. Outer plate member joint structure.